<script lang="ts" setup>
import { type CalendarRangeType, FormulaDataTypes, PlanFeatureTypes, PlanTitles, UITypes, ViewTypes } from 'nocodb-sdk'
import type { SelectProps } from 'ant-design-vue'

const meta = inject(MetaInj, ref())

const { blockCalendarRange, getPlanTitle } = useEeConfig()

const activeView = inject(ActiveViewInj, ref())

const isLocked = inject(IsLockedInj, ref(false))

const IsPublic = inject(IsPublicInj, ref(false))

const isToolbarIconMode = inject(
  IsToolbarIconMode,
  computed(() => false),
)

const { loadViewColumns } = useViewColumnsOrThrow()

const viewStore = useViewsStore()

const { updateViewMeta } = viewStore

const { loadCalendarData, loadSidebarData, fetchActiveDates, viewMetaProperties } = useCalendarViewStoreOrThrow()

const calendarRangeDropdown = ref(false)

const showWeekends = computed({
  get: () => !viewMetaProperties.value?.hide_weekend,
  set: (newValue) => {
    updateViewMeta(activeView.value?.id as string, ViewTypes.CALENDAR, {
      meta: {
        ...(viewMetaProperties.value || {}),
        hide_weekend: !newValue,
      },
    })
  },
})

const dateFieldOptions = computed<SelectProps['options']>(() => {
  return (
    meta.value?.columns
      ?.filter(
        (c) =>
          [UITypes.DateTime, UITypes.Date, UITypes.CreatedTime, UITypes.LastModifiedTime].includes(c.uidt) ||
          (c.uidt === UITypes.Formula && (c.colOptions as any)?.parsed_tree?.dataType === FormulaDataTypes.DATE),
      )
      .map((c) => ({
        label: c.title,
        value: c.id,
        uidt: c.uidt,
        col: c,
      })) ?? []
  ).sort((a, b) => {
    const priority = {
      [UITypes.DateTime]: 1,
      [UITypes.Date]: 2,
      [UITypes.Formula]: 3,
      [UITypes.CreatedTime]: 4,
      [UITypes.LastModifiedTime]: 5,
    }

    return (priority[a.uidt] || 6) - (priority[b.uidt] || 6)
  })
})

watch(
  () => activeView.value?.id,
  async (newVal, oldVal) => {
    if (newVal !== oldVal && meta.value) {
      await loadViewColumns()
    }
  },
  { immediate: true },
)

const calendarRange = computed<CalendarRangeType[]>(() => {
  const tempCalendarRange: CalendarRangeType[] = []

  if (!activeView.value || !activeView.value.view) return tempCalendarRange
  activeView.value.view.calendar_range?.forEach((range) => {
    tempCalendarRange.push({
      fk_from_column_id: range.fk_from_column_id,
      fk_to_column_id: range.fk_to_column_id,
    })
  })
  return tempCalendarRange
})

// We keep the calendar range here and update it when the user selects a new range
const _calendar_ranges = ref<CalendarRangeType[]>(calendarRange.value)

const isSetup = computed(() => {
  return _calendar_ranges.value.length > 0 && _calendar_ranges.value[0].fk_from_column_id
})

watch(
  calendarRangeDropdown,
  (newVal) => {
    if (!newVal && !isSetup.value) {
      calendarRangeDropdown.value = true
      if (_calendar_ranges.value.length === 0) {
        _calendar_ranges.value.push({
          fk_from_column_id: undefined,
          fk_to_column_id: null,
        })
      }
    }
  },
  { immediate: true },
)

// Update the local state from realtime
watch(calendarRange, () => {
  _calendar_ranges.value = calendarRange.value
})

const saveCalendarRanges = async () => {
  if (activeView.value) {
    try {
      const calRanges = _calendar_ranges.value
        .filter((range) => range.fk_from_column_id)
        .map((range) => ({
          fk_from_column_id: range.fk_from_column_id,
          fk_to_column_id: range.fk_to_column_id,
        }))

      await updateViewMeta(activeView.value?.id as string, ViewTypes.CALENDAR, {
        calendar_range: calRanges as CalendarRangeType[],
      })

      await Promise.all([loadCalendarData(), loadSidebarData(), fetchActiveDates()])
      // calendarRangeDropdown.value = false
    } catch (e) {
      console.log(e)
      message.error('There was an error while updating view!')
    }
  } else {
    message.error('Please select a view first')
  }
}

const filterEndDateOptions = (options, startColumnId) => {
  if (!options || !startColumnId) return []

  const startColumn = meta.value?.columns?.find((c) => c.id === startColumnId)
  const startTimezone = startColumn?.meta?.timezone

  return options.filter((option) => {
    const firstRange = dateFieldOptions.value.find((f) => f.value === startColumnId)
    const uidtMatches = firstRange?.uidt === option.uidt

    const optionColumn = meta.value?.columns?.find((c) => c.id === option.value)
    const timezoneMatches = optionColumn?.meta?.timezone === startTimezone
    return uidtMatches && option.value !== startColumnId && timezoneMatches
  })
}

/*
const removeRange = async (id: number) => {
  _calendar_ranges.value = _calendar_ranges.value.filter((_, i) => i !== id)
  await saveCalendarRanges()
}
*/

const onValueChange = async () => {
  _calendar_ranges.value = _calendar_ranges.value.map((range, i) => {
    if (i === 0) {
      return {
        fk_from_column_id: range.fk_from_column_id,
        fk_to_column_id: undefined,
      }
    }
    return range
  })
}
</script>

<template>
  <NcDropdown
    v-if="!IsPublic"
    v-model:visible="calendarRangeDropdown"
    :trigger="['click']"
    class="!xs:hidden"
    overlay-class-name="overflow-hidden"
  >
    <NcTooltip :disabled="!isToolbarIconMode" class="nc-calendar-btn">
      <template #title>
        {{ $t('activity.settings') }}
      </template>

      <NcButton
        v-e="['c:calendar:change-calendar-range']"
        class="nc-toolbar-btn !border-0 group !h-7"
        size="small"
        type="secondary"
        data-testid="nc-calendar-range-btn"
        :show-as-disabled="isLocked"
      >
        <div class="flex items-center gap-2">
          <component :is="iconMap.calendar" class="h-4 w-4" />
          <span v-if="!isToolbarIconMode" class="text-capitalize !text-[13px] font-medium">
            {{ $t('activity.settings') }}
          </span>
        </div>
      </NcButton>
    </NcTooltip>

    <template #overlay>
      <div v-if="calendarRangeDropdown" class="w-108 space-y-6 rounded-2xl p-6" data-testid="nc-calendar-range-menu" @click.stop>
        <div
          v-for="(range, id) in _calendar_ranges"
          :key="id"
          class="flex flex-col w-full gap-2 mb-2"
          data-testid="nc-calendar-range-option"
        >
          <span class="text-nc-content-gray">
            {{ $t('labels.organiseBy') }}
          </span>

          <a-select
            v-model:value="range.fk_from_column_id"
            class="nc-select-shadow w-full !rounded-lg"
            dropdown-class-name="!rounded-lg"
            :placeholder="$t('placeholder.notSelected')"
            data-testid="nc-calendar-range-from-field-select"
            :disabled="isLocked"
            @change="
              () => {
                onValueChange()
                saveCalendarRanges()
              }
            "
            @click.stop
          >
            <template #suffixIcon><GeneralIcon icon="arrowDown" class="text-nc-content-gray-subtle" /></template>
            <a-select-option
              v-for="(option, opId) in [...(dateFieldOptions ?? [])].filter((r) => {
                if (id === 0) return true
                const firstRange = (dateFieldOptions ?? []).find((f) => f.value === calendarRange[0].fk_from_column_id)
                return firstRange?.uidt === r.uidt
              })"
              :key="opId"
              :value="option.value"
            >
              <div class="w-full flex gap-2 items-center justify-between" :title="option.label">
                <div class="flex items-center gap-1 max-w-[calc(100%_-_20px)]">
                  <SmartsheetHeaderIcon :column="option.col" />

                  <NcTooltip class="flex-1 max-w-[calc(100%_-_20px)] truncate" show-on-truncate-only>
                    <template #title>
                      {{ option.label }}
                    </template>
                    <template #default>{{ option.label }}</template>
                  </NcTooltip>
                </div>
                <GeneralIcon
                  v-if="option.value === range.fk_from_column_id"
                  id="nc-selected-item-icon"
                  icon="check"
                  class="flex-none text-primary w-4 h-4"
                />
              </div>
            </a-select-option>
          </a-select>
          <div v-if="isEeUI" class="w-full space-y-2">
            <PaymentUpgradeBadgeProvider :feature="PlanFeatureTypes.FEATURE_CALENDAR_RANGE">
              <template #default="{ click }">
                <NcButton
                  v-if="range.fk_to_column_id === null"
                  size="small"
                  data-testid="nc-calendar-range-add-end-date"
                  type="text"
                  :shadow="false"
                  :disabled="isLocked"
                  @click="
                    click(PlanFeatureTypes.FEATURE_CALENDAR_RANGE, () => {
                      range.fk_to_column_id = undefined
                    })
                  "
                >
                  <div class="flex gap-2 items-center">
                    <component :is="iconMap.plus" class="h-4 w-4" />
                    {{ $t('activity.endDate') }}
                    <PaymentUpgradeBadge
                      :limit-or-feature="PlanFeatureTypes.FEATURE_CALENDAR_RANGE"
                      :content="
                        $t('upgrade.upgradeToUseCalendarRangeSubtitle', {
                          plan: getPlanTitle(PlanTitles.PLUS),
                        })
                      "
                      :feature="PlanFeatureTypes.FEATURE_CALENDAR_RANGE"
                    />
                  </div>
                </NcButton>

                <template v-else>
                  <div class="flex gap-2 items-center">
                    {{ $t('activity.withEndDate') }}
                    <PaymentUpgradeBadge
                      :limit-or-feature="PlanFeatureTypes.FEATURE_CALENDAR_RANGE"
                      :content="
                        $t('upgrade.upgradeToUseCalendarRangeSubtitle', {
                          plan: getPlanTitle(PlanTitles.PLUS),
                        })
                      "
                      :feature="PlanFeatureTypes.FEATURE_CALENDAR_RANGE"
                    />
                  </div>
                  <div class="flex">
                    <a-select
                      v-model:value="range.fk_to_column_id"
                      class="!rounded-r-none nc-select-shadow w-full flex-1"
                      allow-clear
                      :disabled="!range.fk_from_column_id || isLocked || blockCalendarRange"
                      :placeholder="$t('placeholder.notSelected')"
                      data-testid="nc-calendar-range-to-field-select"
                      dropdown-class-name="!rounded-lg"
                      @change="saveCalendarRanges"
                      @click.stop
                    >
                      <template #suffixIcon><GeneralIcon icon="arrowDown" class="text-nc-content-gray-subtle" /></template>

                      <a-select-option
                        v-for="(option, opId) in filterEndDateOptions(dateFieldOptions, range.fk_from_column_id)"
                        :key="opId"
                        :value="option.value"
                      >
                        <div class="w-full flex gap-2 items-center justify-between" :title="option.label">
                          <div class="flex items-center gap-1 max-w-[calc(100%_-_20px)]">
                            <SmartsheetHeaderIcon :column="option.col" />

                            <NcTooltip class="flex-1 max-w-[calc(100%_-_20px)] truncate" show-on-truncate-only>
                              <template #title>
                                {{ option.label }}
                              </template>
                              <template #default>{{ option.label }}</template>
                            </NcTooltip>
                          </div>
                          <GeneralIcon
                            v-if="option.value === range.fk_from_column_id"
                            id="nc-selected-item-icon"
                            icon="check"
                            class="flex-none text-primary w-4 h-4"
                          />
                        </div>
                      </a-select-option>
                    </a-select>
                  </div>
                </template>
              </template>
            </PaymentUpgradeBadgeProvider>
          </div>
        </div>

        <div v-if="!isSetup" class="flex items-center gap-2 !mt-2">
          <GeneralIcon icon="warning" class="text-sm mt-0.5 text-nc-content-orange-medium" />
          <span class="text-sm text-nc-content-gray-muted"> Date field is required! </span>
        </div>

        <div>
          <NcSwitch v-model:checked="showWeekends" :disabled="isLocked">
            <span class="text-nc-content-gray font-semibold">
              {{ $t('activity.showSaturdaysAndSundays') }}
            </span>
          </NcSwitch>
        </div>

        <!--
        <div class="text-[13px] text-nc-content-gray-muted py-2">Records in this view will be based on the specified date field.</div>
-->
        <GeneralLockedViewFooter v-if="isLocked" class="!-mb-4 -mx-4" @on-open="calendarRangeDropdown = false" />
      </div>
    </template>
  </NcDropdown>
</template>

<style lang="scss">
.nc-to-select .ant-select-selector {
  @apply !rounded-r-none;
}
</style>
